A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5990-01-516-9665
NSN 6685-00-473-2423
NSN 5985-00-690-9663
NSN 6150-01-416-5784
NSN 5835-01-150-6084
NSN 6645-00-710-1352
NSN 6130-00-518-4305
NSN 5950-01-527-2711
NSN 5998-01-411-5141
NSN 5925-01-120-2897
NSN 7035-00-782-7046
NSN 6135-00-128-1633